Meet the Modular Stackable Storage Container System — a flexible, tool-free solution for organizing small items exactly the way you need.

Each section gives you a generous 50 mm internal diameter and 40 mm of usable internal height. Build a compact single-section jar or keep adding Middle sections to create tall, stable towers. The design is fully modular: the Middle sections connect securely to each other, to the Bottom, and to the Lid, so you can create any height you want with just three part types.

Key Features

• True mix-and-match modularity — Start with just a Bottom + Lid for a short jar, or add one, two, three (or more) Middle sections for extra capacity. Reconfigure anytime.
• Secure connections — The modules fit together reliably for wobble-free stacks of any height.
• Excellent grip & looks — The diagonal texture provides a comfortable, non-slip surface for easy twisting while adding a clean, modern aesthetic (looks great in solid colors or multi-color combinations).
• Versatile storage — Perfect for hardware (screws, nuts, bolts), craft supplies (beads, findings), desk accessories, pills/vitamins (use food-safe filament), small tools, or travel kits.
• Expandable collection — This is the first size in the series. If the community likes it, I’ll release additional diameters and heights.

Included Files (STL)

• Bottom module (closed base)
• Middle / Extension module (print as many as you like)
• Lid module

Recommended Printing Settings

• Layer height: 0.16 mm using the High Quality profile in Bambu Studio (this gave me the best fit and surface finish)
• Infill: 15–20 %
• Walls: 3–4 (for durability when stacking)
• Material: PLA works beautifully for these colors and fit; PETG if you want extra strength
• Orientation: Print all parts upright
• Supports: Small amount of supports are required for the middle element
• No post-processing needed — parts come off the plate ready to use

The photos show real printed examples in different colors and configurations (single-section vs. multi-section towers) so you can see exactly how the system looks and works in practice.

Whether you’re organizing a workshop, desk, craft room, or travel bag, this system grows with your needs. Print a starter set (1× Bottom, 1× Lid, 2–4× Middles) and start stacking!